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topic: 1459Laying out a station approach on curves
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posted: 17 Apr 2011 23:20

from:

Rob Manchester
 
Manchester - United Kingdom

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Hello,

What is the easiest way to produce a curving double track station approach when planning layouts based on Cyril Freezer's minories ideas ? I am sure many of you are familiar with these types of plans.

I have been trying this :

Single length of plain track the length of the layout.

Chop it up into 5 or 6 lengths. Curve each length of straight track and join them back up with F7.

Looking good so far. :thumb:

Bring each length back into control in turn and make them into double track. I now have a nice sweeping double track layout.

Still looking good. :thumb:

Now for some pointwork. This is where it goes wrong . Just inserting a turnout into one of the plain sections and making a simple crossover doesn't work most of the time as one or other of the turnouts goes over the end of the associated plain track section and produces a crossover to nowhere! It works fine of course if the whole crossover fits within the double track section length.

I suspect my method of splitting up the plain track into short lengths is flawed but I am at a loss to see a better way so far. Sorry if the above description isn't the best thought out one.

Anybody ??

Rob


posted: 18 Apr 2011 10:49

from:

JFS
 
United Kingdom

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Hi Rob,

It goes wrong of course for exactly the reason you suggest!! You need to join your "bits" with transition curves, then delete the original "bits" That way you end up with one continuous length of track with compound curves. (see Martin's transition curve video). If you insert a turnout into that, it can be roamed along then whole length. Beware that when you make it into a crossover, the alignment of the newly created second track will only be approximate (Templot warns about that) so it is best to increase spacings above the minimum to avoid any restricted clearances between the double tracks.

Martin has also produced a video called Aligning track over a centre line" which is what you need - I can't seem to see it on the Templot companion, but if you search this forum I am sure it will pop up.

Good Luck

Howard.

posted: 18 Apr 2011 11:56

from:

Martin Wynne
 
West Of The Severn - United Kingdom

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Hi Rob,

Howard has made the best suggestion -- use a transition curve to create a continuous alignment, and then either insert turnouts in it, or align them over it. Here's the alignment video he mentioned:

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However, you can also split a turnout across a template boundary without too much trouble:

1. insert the turnout in the first template and roam it along (CTRL+F9, or 9 key) beyond the end of the template as required.

2. insert the same size of turnout in the second template. Put the peg at the far end (CTRL+9 peg position), and then use F4 to lengthen the template back over the first one until the turnouts are exactly aligned at the boundary location. Zoom in close to get an accurate result:

2_180635_420000000.png2_180635_420000000.png


3. then blank it (CTRL+F3, or 3 key) back to the boundary: 

2_180636_260000000.png2_180636_260000000.png


The result is a turnout split across two templates of differing radius. Note that this turnout is in two parts, so to copy or move it you would need to use the group functions.

regards,

Martin.

posted: 18 Apr 2011 22:14

from:

Rob Manchester
 
Manchester - United Kingdom

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Thanks to Howard and Martin for the replies. I will try and see how I get on.

Rob




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